Brooder stove and hover



Oct. 15, 1929. R Q FENCE 1,732,167

- BROODER STOVE AND. HOVER Filed y 1926 2 Sheets-Sheet 2 w uuuuuunu ,3

nnunnunn Patented a. 15, 1929 l 1,732,167

UNITED STATES PATENT OFFICE BOSCO O. FENCE, OF STERLING, KANSAS BROODER STOVE AND HOVER Application filed July 10, 1926. Serial No. 121,729.

This invention relates to brooders and parlower end of the magazine and the upper end ticularly to means for heating a brooder and of the fire pot an annular smoke chamber 15. the general object of the invention is to pro- The rear half of this smoke chamber is closed vide' a stove for this purpose which is very at its bottom by an annular wall 16 but the simple, may be cheaply made, which is thorfront half of the smoke chamber is open at 5 2 oughly effective, and which will not overheat the bottom toprovide a heat expansionchamth br der, ber above the fire pot. The magazine; the A further object is to provide means for annular smoke chamber, and the fire pot'may automatically controlling the draft through be formed in any suitable or desired manner 1 the stove and thereby controlling the heat, and either integralor formed in sections. this means being in turn controlled by a ther- Extending upward from the smoke cham mostat and another object is to provide means ber at the rear of the heater is the smoke flue for this purpose which not only controls the 1' 7 which at a point above the top of the magae amount of draft passing upward through the zine 13, extends into a draft control chamber fire but controls a check draft damper. v designated generally 18. This chamber has A still further object is to provide a hover projecting from it short sections of pipe 19 adapted to be mounted upon the stove and exwhereby the chamber may be connected to tend downward and outward therefrom and the lower section 17 of the smoke flue and to which is capable of being raised or lowered an upper section 20. The draft controlled 39 upon the cylindrical barrel of the stove, th1s chamber 1s preferably circular in cross section hover being so constructed as to provide a and is formed 011 one side with a relatively dead air space around the stove at the point enlarged opemng 21.

. of junction with the hover. Pivoted upon a longitudinally extending Other objects will appear in the course of plntle 22 1s a curved damper plate 23 which,

25 the following description. when 1t swings overin one direction, bears My invention is illustrated in the accomagalnst the wallof the chamber 18 and closes panying drawings wherein the opening 21 When more heat is desired Figure 1 is a, vertical sectional view th1s damper w11lsw1ngto its closed position through my improved brooder stove; and when less heat is desired the damper will Fig. 2 is a section on the line 2-2 of Figopen and the air will pass down through the so ure 1; v flue 17 and check the fire. The pintle 22 is Fig. 3'is a section on the line 33 of Fig provided with a crank 24 whereby the damper ure 1; x 1 23 may be operated from a thermostat.

Fig. 1 is a detailed sectionalview. showing Alr 1s admitted into the ash pit by means the connection of the draft damper to the of a duct 25 which is preferably rectangular s5 thermostat operated rod; 1n cross section and extends upward and out-.

Fig. 5 is an elevation of the thermostat. ward from the ash pit at the rear thereof.

Fig. 6 is an elevation of the check draft Thls duct at 1ts upper end carries a swinging damper casing and showing another means door or damper 26 which is designed to be whereby the check draft may be operated. Operated 1n correspondence with the damper Referring to these drawings 10 designates 23. p the ash pit of the stove, 11 the grate, 12 the Mounted upon one side wall of the fresh air fire pot, and 13 the fuel magazine. This fuel duct 25 1s a bracket 27 and pivotally mounted magazine is cylindrical in form and provided upon the outer end of this bracket is a lever with an opening in its top normally covered 28. The free end of this lever 28 carries a rod by a lid 14 through which coal may be sup- 29 which is adjustably engaged with the free plied to the magazine. The fire pot extends end of the lever, this rod extending upward upward and outward and at its upper end has parallel to the flue 17 and being engaged at a greater diameter than the diameter of the its upper end with the crank 24. The free mae'azine and there is formed between the edge of the draft door 26 has a bail 30 and p adjustably mounted upon the rod is a sleeve 31 having a hook 32 engaging this bail. This sleeve is adjustable upon the rod 29 by means of a set screw 33.

Mounted upon the bracket 27 are the two disk thermostats 34 and 35, each thermostat consisting of two elements and expanded under the action of heat and contracted under a cooling action. Bars 36 connect the two pairs of elements and shift as the elements expand or contract and these bars extend across the bracket 27 and the lever 28. Thus. as the thermostat expands, the lever 28 will be moved away from the bracket 27 and this will act to shift the door 26 toward its closed position and shift the damper 23 towards its open position and vice versa. As a less degree of heat causesthe thermostats to contract, the lever will be drawn upward, thus opening the draft door to permit more air to passto the fire and closing the check draft damper. Preferably the rod 29 extends upward through a tubular guide 33 carried upon or formed as part of the flue 17. Preferably also the flue 17 is engaged with the upper wall of the smoke passage 15 by means of the upwardly extending flange 34.

Surrounding the magazine 13 and the flue 17 and vertically movable thereon is a metal lic collar 35 which in practice will be about 1" wide, and attached to the upper edge of this collar and extending downward and outward therefrom is a roof or hover made of light metal designated 36. Attached to the lower edge of the collar 35 is an annular piece of sheet metal designated 37 which extends outward and upward and is attached to the sheet metal 36 a few inches from the collar to thus form a dead air space between the two sheets of metal at the top of the hover. As the collar is made to fit closely around the magazine, it will prevent all escape of heat at this vpoint and the heat is carried downeven distribution of heat is secured.

tween the bottom of the magazine and the upper part of the fire pot. The draft is at all times automatically controlled by means of the thermostat and thus the temperature of the brooder may be kept uniform. The roof or hover 36 may be adjusted upon the magazine to any desired height and thus on cold days it may be brought down close to the chicks, thus preventing any too great loss of heat and on warm days may be elevated.

The hover 36 may be removed entirely from the magazine by simply removing the damper section 18 and the pipe section 20.

While I have heretofore. referred to the check draft damper as being operated by the pintle 22 connected, through its crank arm 24, with the operating rod 29, I do not wish 21 opopsite the operating rod 29 as in Figure 6, or bring this opening 21 to one side as shown in Figure 3, and connectthe operating rod 29 to the crank 24.

The damper chamber 18 is preferably disposed about six inches above the top of the magazine in order to permit the hover to be raised clear of the stove and the damper is weighted somewhat so as to overcome the weight of the draw rod and lever on the thermostat and thus cause the damper to be urged to a'closed position.

I regard the smoke chamber 15 as being very essential as without this chamber a great deal more of the heat would be carried out of the fire pot into the flue than'is the case where the smoke, chamber is used. This smoke-chamber tendsto retard the heat, thus utilizing more of it and-distributing the heat more evenly around the fire pot. Furthermore it causes the draftto be more evenly distributed. I

The object of making the chamber 18 circular in cross section is to eliminate any square corners whichtend to collect soot and whichvwould tend to prevent the even flow of air. Furthermore by making the chamber circular incross section the damper-will close against the margin of the air opening more certainly than it otherwise would.

1. A brooder stove of the character described comprising an ash pit, a fire pot extending upward and outward from the ash pit andhaving a grate at its lower end, a cylindrical magazine extending upward from the top of the fire pot, the lower end of the magazine being less indiameter than the diameter of the fire pot at its top, and an annular smoke chamberextending around the baseof the magazine above the fire pot, he smoke chamber having a bottom wall for part of its length, anda flue extending upward from the smoke chamber at a point above the bottom, the wall flue at one point in its length being provided with a check draft opening, a check draft damper disposed in the opening, and thermostatic means for controlling this damper.

2. A brooder stove having an ash pit, a fire pot, a cylindrical magazine extending upward from the top of the fire pot, the lower end of the magazine being less in diameter than the bottom of the fire pot at its top, an annular smoke chamber having an outer wall, the outer wall being detachably mounted upon the top of the fire pot and having a diameter the same thereas, the lower end of the magazine being detachably engaged with the top of the inner wall for part of its length and having a flue opening in its top wall at 5 a point above said bottom wall, the magazine carrying a fiue extending upward from the flue opening of the smoke chamber and to a point above the magazine, the .fiue at a point above the magazine being provided with a check draft opening, a check draft damper disposed within the opening, and thermostatic means disposed adjacent the lower portion of the fire pot for automatically controlling the inlet of fresh air to the fire pot and controlling said check draft damper.

3. The combination with a brooder stove having afiue, of a transversely circular check draft damper casing mounted upon the flue for rotative adjustment around a vertical axis and having an opening in one face, a check draft damper hingedly supported at its upper end within the casing for inward swinging movement toward or from said openin and having an arm extending out througi said opening and having its hinge pintle eX- tending through the end Wall of the casing and having a crank arm thereon exterior to the casing, the brooder stove having an air inlet, a thermostat disposed adj aoent the base 40 of the brooder stove, a damper for controlling the inlet of air through the last named opening, and means operated by the thermostat for shifting both of said dampers, one reverse- 1y to the other.

4. The combination with a stove having an air inlet in its base and having a fiu'e, of a transverse check draft damper casing mounted upon the flue for rotative adjustment around a vertical axis and having an opening in one face, acurved check draft damper hingedly mounted at its upper end within the casing for inward swinging movement toward or from said opening, the damper when closed approximately fitting the curvature of the wall defining said opening, a thermostat disposed adjacent the base of the stove, a damper for controlling the passage of air through said air inlet, and means operated by the thermostat for shifting both of said dampers, one reversely to the other.

In testimony whereof I hereunto afiix my signature.

ROSCO O. PENOE. 

